parker



UNITED STATES PATENT OFFICE.

CHARLES B. PARKER AND ONESIPHARUS B. PARKER, OF SOUTH HADLEY, ASSIGNORSOF ONE-THIRD TO BENJ. P. GLOVER, OF HOLYOKE, MASS.

CARDf-GRINDER.

SPECIFICATION forming part of Letters Patent No. 277,604, dated May 15,1883. Application tiled December 1, 1882. (No model.) n

To all whom it may concern y Be it known that we, OHAs. B. PARKER andONESIPHARUS B. PARKER, citizens oi' the United States, residing at SouthHadley, Hampshire county, Massachusetts, have invented a new and usefulImprovement in Reversing Mechanism for Gard-Grinders, 0i" which thefollowingisa specification, reference being had t0 theaccompanyingdrawings, which are ro hereby made part ofthe same.

Similar letters of reference in the drawings indicate correspondingparts.

Theohjectofourinveniionistoruntheemerywheel much more rapidly than itcan now be run, and to reverse its motion or travel at any given pointon either a cotton or woolen card, grinding the doffer and cylinder atthe same time. The manner in which this vis accomplished by ourinvention we will now proceed zo to describe.

Figure l is a front elevation of the grinder. Ais an emery-wheel. B isthe shaft which carries the emery-wheel, and B is the pulley whichdrives shaft B. b is a spline in shaft B. b is a feather in theemerywheel, which slides in spline b. b3 is the collar on shaft B. C isa double-thread screw, which moves the emerywheel backward and forward.c is a collar ou4 shaft C. D is a guide-rod, which reverses the 3otravel of the emery-wheel. d d are the stops on rod D. d is a set-screwwhich holds the said stops. d2 is a spiral spring on rod D, which iscompressed against the stops d d by arm h2, and throws the clutch hy itsrecoil. E E are the standards forming the bearing for the three shafis BG D. e is hearing for the shaft E. e is the fulcrum-piu by which thegrinder is attached to the stand on the frame of the card. c2 is saidstand. F F are the 4o pulleys for driving the screw C. F2 is the clutch.fis a clutch-catch in pulleys F F, shown in detailed views, Figs. 5 and6. f4 is the groove in clutch F2. ff2 are the catches on the oppositesides of clutch F2. (Shown in Figs. 3 and 4..) f3 is spline in theclutch F2. 45 H is the nut on shaft C, which traverses the emery-wheel.h hare the arms on the n uts, which engage the emery-wheel on oppositesides. h h are the pins which form the thread in the nut H. There areeight of these-four 5o on each side. h2 is the arm on nut H, whichreverses the motion of the emery-wheel by striking the stops d d.' I isan arm on the shaft D, which engagesthe clutch F2 and reverses itwhenever the rod D is changed. t' 55 is a set-screw, which fastens arm Ito the rod D. L is the doit'er-cylinder on the card. l is the shaft ofcylinder L. l Z2 are pulleys on shaft l, which drive screw C by beltingonto pulleys F F. Z3 is pulley on the opposite or 6o lett end of shaftl, by which the cylinder L is driven. Ois the main card-cylinderot`thecard. ois thepulley on shaft of cylinder O, from which thedoi'er-cylinder L and emery-wheel shaft B are driven. t' is a crossedbelt from pulley 65 l to pulley F'. t2 is an open belt from pulley l2 topulley F. I

Fig. 2 is an end elevation of our invention. Figs. 3 and 4 are detailedviews of the clutch. Figs. 5 and 6 are detailed views ofthe clutch- 7opulleys. Fig. 7 is a front elevation of a card with grinder attached.Fig. S is an end ele vation of the same. Figs. 9, 10, 1l, and l2 aredetails.

Having thu-s described our invention, we

